Method and Device for Transmitting/Receiving Identifier for No-Mobility Mobile Station in Idle State in Wireless Communication System

1. A method of allocating an identifier for a fixed Machine to Machine (M2M) device in a wireless communication system, the method comprising: assigning, by a base station, an identifier for the fixed M2M device during an idle mode entry; transmitting, by the base station to the fixed M2M device, the identifier assigned to the fixed M2M device; and transmitting, by the base station to the fixed M2M device, control information including the identifier assigned to the fixed M2M device, wherein the control information comprise resource assignment, and wherein the identifier assigned to the fixed M2M device is unique in a domain of the base station while the identifier assigned to the fixed M2M device is not unique in a domain of a network including the base station and another base station.

2. The method of claim 1 , wherein a size of the identifier assigned to the fixed M2M device is 16 bits.

3. The method of claim 1 , wherein the identifier assigned to the fixed M2M device is a deregistration identifier.

4. The method of claim 3 , wherein the deregistration identifier is transmitted through a deregistration message.

5. A method of receiving identifier information in a wireless communication system, the method comprising: receiving, by a fixed Machine to Machine (M2M) device from a base station, an identifier assigned to the fixed M2M device; and using, by the fixed M2M device, the identifier assigned to the fixed M2M device to receive control information from the base station, wherein the control information comprise a resource assignment, wherein the identifier is assigned by the base station to the fixed M2M device during an idle mode entry, and wherein the identifier assigned to the fixed M2M device is unique in a domain of the base station while the identifier assigned to the fixed M2M device is not unique in a domain of a network including the base station and another base station.

6. The method of claim 5 , wherein a size of the identifier assigned to the fixed M2M device is 16 bits.

7. The method of claim 5 , wherein the identifier assigned to the fixed M2M device is a deregistration identifier.

8. The method of claim 5 , wherein the identifier assigned to the fixed M2M device is received through a deregistration message.

9. A base station of assigning an identifier for a fixed Machine to Machine (M2M) device in a wireless communication system, the base station comprising: a processor configured to assign an identifier to the fixed M2M device during an idle mode entry; and a transmitter configured to transmit, to the fixed M2M device, the identifier assigned to the fixed M2M device, and control information that includes the identifier assigned to the fixed M2M device, wherein the control information comprises resource assignment, and wherein the identifier assigned to the fixed M2M device is unique in a domain of the base station while the identifier assigned to the fixed M2M device is not unique in a domain of a network including the base station and another base station.

10. A fixed Machine to Machine (M2M) device of receiving identifier information in a wireless communication system, the fixed M2M device comprising: a receiver; and a processor, wherein the processor is configured to control the receiver such that the receiver receives, from a base station, an identifier assigned to the fixed M2M device, and uses the identifier assigned to the fixed M2M device to receive control information from the base station, wherein the control information comprises resource assignment, and wherein the identifier assigned to the fixed M2M device is allocated by the base station during an idle mode entry, and wherein the identifier assigned to the fixed M2M device is unique in a domain of the base station while the identifier assigned to the fixed M2M device is not unique in a domain of a network including the base station and another base station.